The DT12® On-Highway Series of automated manual transmissions builds upon the DT12’s proven reputation to provide a trio of purpose-built solutions for on-highway applications. All three models offer:
The Detroit® DT12-HE transmission is an all-new, extremely efficient option for those customers looking to reduce fuel consumption as much as possible. The DT12-HE is built for customers who demand the ultimate performance from their transmission. Design enhancements include:
*Available in 2021
The Integrated Detroit® Powertrain delivers the performance and dependability you need to run your business efficiently. Detroit® has designed, engineered and manufactured the engine, transmission and axles to work together seamlessly, providing the optimal powertrain solution for your business needs. The Integrated Detroit® Powertrain is available in the Freightliner Cascadia and the Western Star® 5700.
An automated manual transmission (AMT) offers the benefits of both a manual and automatic transmission. Its design uses an efficient clutch instead of a torque converter, but the clutch and shifting are handled by a computer-controlled air system. Even a novice driver can get to work with minimal effort and fuel—and maximum productivity.
The DT12® On-Highway Series transmissions provide 12 speeds for increased efficiency and flexibility. Its two-pedal design allows the driver to focus on what’s ahead instead of what’s underfoot, increasing safety and productivity. As a bonus, seamless integration with Detroit® engines and safety systems promotes optimal performance.
Click through the tabs below to learn more about the DT12® features and benefits.
Transmission automatically disengages when the vehicle is coasting to help maximize fuel economy.
The Transmission Control Module (TCM) sends electronic commands to “skip” unnecessary gears, helping increase acceleration to achieve cruising speed quickly and smoothly, and allowing the driver to accelerate in the appropriate “start gear” based on load and grade.
A Common Powertrain Controller (CPC) optimizes high-speed communication between the Motor Control Module and the Transmission Control Module, improving operational efficiency throughout the entire powertrain.
The Transmission Control Module (TCM) calculates the torque wind-up in the driveline and regulates with engine torque control for enhanced driving comfort and less driveline wear.
Intelligent Powertrain Management (IPM) pinpoints the truck's location and looks over a mile ahead to anticipate terrain. IPM will adjust cruise control, pre-select gears, eCoast and brake the engine to maximize efficiency into the road conditions ahead.
The aluminum housing and single countershaft help save weight, allowing for even more payload efficiency, while still offering excellent durability.
DT12® transmissions are available with a proprietary rear-mount-only Power Take-Off (PTO) that may allow customers in the bulk-haul tractor/trailer market to operate applications using liquid trailers, dry goods, wet goods, and moving floors.
DT12® on-highway series transmissions vary across a range of truck models.
If maintenance issues come up while on the road, you can count on Detroit Connect Virtual Technician® remote diagnostics system to let you know how serious the fault code is, as well as where, when and how to fix the issue so you can make informed maintenance decisions and get back on the road faster.
Learn more by visiting the nearest Freightliner or Western Star dealership.Find Nearest Dealer
The Detroit™ Connect portal is easy-to-use, one-stop-shop for all vehicle performance data gathered, transmitted and analyzed by Detroit Connect. The portal gives you access to insights delivered by Detroit Connect Virtual Technician℠. The Detroit Connect portal will also give you access to new features, such as Remote Updates, and Analytics, available late 2017.Detroit connect portal login
All DDCSN content has been migrated to our DTNAConnect web portal. All information previously on the DDCSN is now on DTNAConnect. We have created a quick reference guide to help you locate the migrated content on DTNAConnect. Existing DDCSN login credentials will also work with DTNAConnect. Please work with your security administrators for login or content issues. If you do encounter any technical issues, please contact the Software Support Center at 855-639-8680 or email@example.comDTNA CONNECT PORTAL LOGIN
DTNA Connect is the starting point for working with all brands and franchises that fall under the Daimler Trucks North America umbrella: Detroit, Thomas Built Buses, SelecTrucks, Sterling, Freightliner, and Western Star. Here, you can access the full spectrum of online applications, resources and tools you need. Whether you use DTNA online resources to complete repairs, purchase parts, submit warranty claims, spec new vehicles or track the status of your truck orders, DTNAConnect streamlines the tasks and activities that are part of your daily work routine.DTNA Connect Portal Login